| Horizon West to Cromer | 4,391.06 mi (7,066.73 km) |
| Horizon West to Crosby | 4,207.61 mi (6,771.50 km) |
| Horizon West to Crowborough | 4,372.78 mi (7,037.30 km) |
| Horizon West to Croxley Green | 4,338.41 mi (6,981.99 km) |
| Horizon West to Croydon | 4,356.58 mi (7,011.23 km) |
| Horizon West to Cudworth | 4,272.00 mi (6,875.12 km) |
| Horizon West to Culcheth | 4,228.80 mi (6,805.60 km) |
| Horizon West to Cullercoats | 4,253.45 mi (6,845.27 km) |
| Horizon West to Cumbernauld | 4,144.92 mi (6,670.61 km) |
| Horizon West to Cumnock | 4,138.86 mi (6,660.86 km) |
| Horizon West to Cupar | 4,179.04 mi (6,725.52 km) |
| Horizon West to Cwmbran | 4,230.07 mi (6,807.64 km) |
| Horizon West to Dagenham | 4,364.62 mi (7,024.18 km) |
| Horizon West to Dalkeith | 4,181.28 mi (6,729.12 km) |
| Horizon West to Darfield | 4,273.87 mi (6,878.14 km) |
